Police have released a sketch of a man they think was firing randomly at motorists and people on the streets earlier in the week. Anyone with information is asked to call (800) 773-2587.

Police say they’ve talked to the “person of interest” whose photo they released Friday as a possible witness to the gunman along the I-96 corridor, that he was cooperative and he is no longer sought in connection with the shooting.

“The gentleman came in and talked to us at length,” Wixom Chief Clarence Goodlein said, referring to the man in the picture whom he did not name. Goodlein said investigators now believe the man is not involved in the shootings “in any way, shape or form.”

The video surveillance photos released Friday were taken from a Mobil gas station in Brighton on Oct. 27, the date of the last two shootings.

The man terrorizing motorists along the I-96 corridor likely knows the area well, police say. He may not have a violent history, and those who know him might not believe he's capable of such crimes.

It's been a week since the shooter last struck, but the investigation continues to intensify as police sift through 2,600 tips and increase patrols today in anticipation of the Michigan State University football game in East Lansing. No arrests have been made.

The task force investigating the shootings also said there may be additional victims and urged people who travel in the area to inspect their vehicles for bullet holes.

A total of 24 shootings, mostly aimed at motorists, have been reported since mid-October along the I-96 corridor in Oakland, Livingston, Shiawassee and Ingham counties. Police released additional details Friday of the exact times and locations of each of shootings.

One person has been injured, a man who was shot in the buttocks driving on I-96 near Fowlerville last weekend.

The FBI, Bureau of Alcohol, Tobacco, Firearms and Explosives and Crime Stoppers are offering a $102,000 reward for information leading to the arrest of the suspect. Authorities said nine of the shootings have been linked through forensics tests. A handgun was used, according to police.

Police say they believe the shooter is a white man in his late 20s or early 30s. A witness described him as clean-shaven, but authorities say he could change his appearance. The suspect has been described as driving a dark-colored vehicle of a similar size and body style as an older Oldsmobile Alero or Toyota Camry.